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CUET
General Test
Quantitative Reasoning
Trigonometry
If sin2α - 3cos2α = 0 , find the value of α .
60°
30°
15°
45°
sin2α - 3cos2α = 0
cot2α = \(\frac{1}{3}\)
cotα = \(\frac{1}{\sqrt {3}}\)
α = 60°